Chromag Bicycle Stems Recalled by Riser Holdings Due to Fall and Injury Hazards

This recall involves Chromag bicycle stems used to clamp the fork steerer and/or handlebars. The recalled stems include models BZA, Director, HiFi and Ranger. Only stems with a "Z" marked inside the bolt head are included in this recall. "Chromag" and the model name are printed on the stems. The stems were sold separately from bicycles. Bolts used in the stems are 6 mm in diameter and 20 mm in length. The stems were sold in various colors including black, red, blue, gold, purple and silver.